Severe Flood ● Closed
Flood Watch issued September 12 at 3:05PM EDT until September 13 at 2:00PM EDT by NWS Upton NY, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of southern Connecticut, including the following
areas, Northern Middlesex, Northern New London, Southern Fairfield,
Southern Middlesex, Southern New Haven and Southern New London and
southeast New York, including the following areas, Northeast
Suffolk, Northern Nassau, Northwest Suffolk, Southeast Suffolk,
Southern Nassau and Southwest Suffolk.
* WHEN...From Sunday morning into midday Sunday
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Showers with heavy downpours and a few thunderstorms early Sunday
morning into midday Sunday may lead to flooding. Average rainfall
amounts are forecast to range from 1.5 to 3 inches with locally
higher amounts of 5 to 7 inches possible. Peak hourly rates could
reach 2 to 2.5 inches.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Northern Middlesex; Northern New London; Southern Fairfield; Southern New Haven; Southern Middlesex; Southern New London; Northwest Suffolk; Northeast Suff |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-09-12T23:15:00-04:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportAlso reported by: WMO WMO WMO
This event as JSON · API and licence
Source updated 37 days ago (Sep 12, 2026 19:06 UTC) · we last heard from WMO Alert Hub (national weather services) 10 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Northern Middlesex; Northern New London; Southern Fairfield; Southern New Haven; Southern Middlesex; Southern New London; Northwest Suffolk; Northeast Suff
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.